External air cooling ruling machine engine heat dissipation structure

Abstract

According to the engine heat dissipation form of the external air cooling ruling machine, the ruling machine comprises a vehicle frame, a mixing material tank, a gas tank frame, a driving engine, a control box, a high-pressure gas outlet box and a discharging hopper, an engine bin is vertically supported and separated at the bottom of the gas tank frame through angle iron, and the adjacent surfaces of the engine bin and the high-pressure gas outlet box are communicated with each other; a plurality of negative pressure fans are arranged on the surface, adjacent to the mixing material tank, of the engine bin, shutter bin doors are arranged on the other two faces of the engine bin, and the driving engine which is originally placed in a direct open mode is arranged in the engine bin in an outer wrapping mode, so that air is blown towards the mixing material tank at the position close to the heating source of the mixing material tank; therefore, a heat source cannot be close to the engine bin, a self-suction type negative pressure mechanism can be achieved in the engine bin through the negative pressure fan, dust prevention and cooling heat dissipation can be achieved, and efficient and stable operation of the driving engine is guaranteed.

Description

Technical Field

[0001] This article belongs to the technical field of heat dissipation for line marking machine engines, specifically involving an externally air-cooled heat dissipation structure for line marking machine engines. Background Technology

[0002] Hot melt road marking machines are devices used for applying hot melt road markings on highways. They apply powdered hot melt paint, which has been melted at high temperatures in a hot melt kettle, onto the road surface to create road markings for guidance, restraint, and warning.

[0003] Hot melt road marking machines can be divided into hot melt scraping type, hot melt extrusion type and hot melt spraying type according to their marking methods. Hot melt road marking machines mainly include paint buckets, glass microbead spreaders and marking nozzles. Paint buckets are used to store, heat and mix hot melt paint. The hot melt paint in the paint buckets is sprayed onto the road surface by a pressure pump and an air pump. Then the glass microbead spreader spreads glass microbeads for nighttime reflection onto the hot melt paint to form hot melt markings for indicating the road.

[0004] In existing technologies, hot melt road marking machines are usually hand-push type, requiring workers to push them along the road surface to mark the corresponding road markings. Therefore, to facilitate pushing by workers, the size of the marking machines is mostly not very large. However, in order to achieve efficient hot melting, liquefied natural gas (LNG) tanks are usually used for combustion heating to melt and mix the materials. An engine is also needed to rotate and stir the material and pressurize and spray it. However, when LNG is burned, the size of the marking machine itself causes the heat from the combustion to be conducted to the engine, which can easily lead to engine overheating. Furthermore, since the engine is an outdoor type, its cooling system only uses internal circulation cooling and cannot address the impact of external high temperatures on the engine. Utility Model Content

[0005] To address the aforementioned issues, this paper proposes an externally air-cooled engine cooling structure for a line marking machine. The line marking machine includes a frame, a mixing tank, an air tank frame, a drive engine, a control box, a high-pressure air outlet box, and a hopper. The mixing tank is located at the front end of the upper surface of the frame. An air tank frame is located adjacent to the rear side of the mixing tank. A high-pressure air outlet box is located on one side of the air tank frame. An engine compartment is located at the bottom of the air tank frame, vertically supported by angle iron. The surfaces of the engine compartment and the high-pressure air outlet box are interconnected. Several negative pressure fans are located on the surface of the engine compartment adjacent to the mixing tank. Louvered doors are located on the other two sides of the engine compartment. The internal compartment houses a drive engine, which is directly connected to an air pump inside the high-pressure exhaust box. The drive engine is connected to a negative pressure fan via a gearbox. By enclosing the drive engine, which was originally placed in an open manner, inside the engine compartment, and by installing a negative pressure fan and a louvered door on the outside of the engine compartment, air is blown towards the heat source, the mixing tank, thus preventing the heat source from approaching the engine compartment. The negative pressure fan also creates a self-priming negative pressure mechanism inside the engine compartment, achieving dust prevention and cooling, thereby ensuring the efficient and stable operation of the drive engine.

[0006] The frame includes a base and casters. The base is a rectangular frame with four casters running longitudinally along its bottom. These casters are passive push-pull casters. The frame allows the marking machine and the equipment above it to move, thus enabling mobile marking operations.

[0007] The mixing tank is a cylindrical hollow tank. A guide chute is provided at the bottom of the side of the mixing tank adjacent to the high-pressure gas box. The lower end of the guide chute is located at the upper opening of the discharge hopper. The discharge hopper is fixedly located on the side of the vehicle frame. The mixing tank enables the hot melting and mixing of materials, and the materials are discharged into the discharge hopper through the guide chute for feeding. The mixing tank can also be used for combustion and melting with liquefied natural gas, improving melting efficiency.

[0008] The gas tank rack is a vertically shaped rectangular hollow shell. Inside the gas tank rack, there are several vertically equidistant circular clamps. The inner side of each circular clamp is fitted with a liquefied natural gas tank. Support angle irons are provided at the four corners of the bottom surface of the gas tank rack. The outer surfaces of the support angle irons are separated by louvered doors and negative pressure fans. The support angle irons are interconnected with the adjacent side of the high-pressure gas outlet box. The gas tank rack is used to install and fix the liquefied natural gas tank, thereby ensuring the stability of the tank during the marking process. The bottom support angle irons provide vertical support for the engine compartment of the drive engine.

[0009] The high-pressure air outlet box is a pressurized internal pump box. The high-pressure air outlet box is equipped with an air pump inside. The high-pressure air outlet box is connected to the pressurized air port of the hopper through a pipeline. The air pump is connected to the drive engine through a gearbox. The interconnection between the high-pressure air outlet box and the engine box realizes a convenient air pump drive connection. It can also be easily connected to the hose of the hopper to achieve efficient spraying of the hopper.

[0010] A control box is located on the top rear side of the high-pressure gas box and gas tank rack. A handrail is externally attached to the rear side of the control box. Both ends of the handrail are connected to the high-pressure gas box and gas tank rack. The control box and handrail allow for convenient operation and movement of the entire marking machine, making it convenient for workers to use.

[0011] The negative pressure fan is a high-frequency, high-speed fan. The negative pressure fans are arranged in an equidistant array on the surface of the engine compartment through a cover frame. The negative pressure fans are embedded in the surface of the cover frame. By using the negative pressure fans, the engine compartment containing the drive engine can be efficiently exhausted, thereby achieving the effect of air intake in other parts of the engine compartment. This ensures that the intake air is low-temperature controlled, thereby achieving efficient cooling. It can also shield the high temperature of the fuel tank combustion. The multi-array arrangement can maximize the fan effect.

[0012] The louvered compartment door is an assembled, sealed compartment door. The surface of the louvered compartment door has several ventilation louver grooves. The sealing strip on the inner surface of the louvered compartment door is sealed to the engine compartment. The louvered compartment door allows air to enter from the two sides away from the mixing tank, thereby ensuring efficient heat dissipation of the engine.

[0013] Beneficial effects:

[0014] By enclosing the drive engine, which was originally placed in an open manner, inside the engine compartment, and by installing a negative pressure fan and a louvered door on the outside of the engine compartment, air is blown towards the heat source, the mixing tank, thus preventing the heat source from approaching the engine compartment. The negative pressure fan also creates a self-priming negative pressure mechanism inside the engine compartment, which can prevent dust and cool down the engine, thereby ensuring that the drive engine can operate efficiently and stably.

[0015] The use of a chassis allows the marking machine and the equipment on top of it to be moved, thus enabling mobile marking operations.

[0016] The mixing tank enables the thermal melting and mixing of materials, and the material is discharged into the hopper through the guide chute, ready for feeding. The mixing tank also facilitates the combustion and melting of liquefied natural gas, improving melting efficiency.

[0017] The liquefied natural gas tank is installed and secured using a tank rack, ensuring the stability of the tank during the marking process. The bottom support corners provide vertical support for the engine compartment where the drive engine is installed.

[0018] The interconnection between the high-pressure air outlet chamber and the engine compartment enables convenient air pump drive connection and facilitates connection with the hose of the discharge hopper, achieving efficient spraying of the discharge hopper.

[0019] The control box and handrails allow for easy operation and movement of the entire marking machine, making it convenient for staff to use.

[0020] By using negative pressure fans, the engine compartment containing the drive engine can be efficiently ventilated, thereby achieving the effect of air intake in other parts of the engine compartment. This ensures that the intake air is low-temperature controlled, thus achieving efficient cooling. It can also shield the high temperature of the fuel tank combustion. The multi-array configuration maximizes the effectiveness of the fans.

[0021] The louvered hopper allows air to enter from the sides away from the mixing tank, thus ensuring efficient engine cooling. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the left front of an externally air-cooled heat dissipation structure for a marking machine engine;

[0023] Figure 2 This is a schematic diagram of the front right side of an externally air-cooled heat dissipation structure for a marking machine engine.

[0024] Figure 3 This is a rear view of an externally air-cooled heat dissipation structure for a marking machine engine.

[0025] Figure 4 This is a schematic diagram of the engine compartment of an externally air-cooled marking machine engine cooling structure.

[0026] In the diagram: 1. Base frame, 2. Casters, 3. Gas tank rack, 4. Engine compartment, 5. High-pressure gas outlet box, 6. Control box, 7. Handrail, 8. Mixing tank, 9. Louvered hopper door, 10. Negative pressure fan, 11. Hopper, 12. Drive engine. Detailed Implementation

[0027] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0028] 1. Base frame, 2. Casters, 3. Gas tank rack, 4. Engine compartment, 5. High-pressure gas outlet box, 6. Control box, 7. Handrail, 8. Mixing tank, 9. Louvered hopper door, 10. Negative pressure fan, 11. Hopper, 12. Drive engine.

[0029] like Figure 1 , 2 As shown in Figures 3 and 4;

[0030] An externally air-cooled engine cooling structure for a line marking machine is disclosed. The line marking machine includes a frame, a mixing tank 8, an air tank frame 3, a drive engine 12, a control box 6, a high-pressure air outlet box 5, and a hopper 11. The mixing tank 8 is located at the front end of the upper surface of the frame. The air tank frame 3 is located adjacent to the rear side of the mixing tank 8. The high-pressure air outlet box 5 is located adjacent to one side of the air tank frame 3. An engine compartment 4 is located at the bottom of the air tank frame 3, vertically supported and separated by angle iron. The surfaces of the engine compartment 4 and the high-pressure air outlet box 5 are interconnected. Several negative pressure fans 10 are provided on the surface of the engine compartment 4 adjacent to the mixing tank 8. The remaining surfaces of the engine compartment 4... Both sides are equipped with louvered doors 9. The engine compartment 4 houses a drive engine 12, which is directly connected to an air pump inside the high-pressure exhaust box 5. The drive engine 12 is driven by a negative pressure fan 10 via a gearbox. The frame includes a chassis 1 and casters 2. The chassis 1 is a rectangular frame with four longitudinally arranged casters 2 at its bottom. These casters 2 are passively pushed wheels. Above the chassis 1, the mixing tank 8 is a cylindrical hollow tank. A guide chute is provided at the bottom of the side of the mixing tank 8 adjacent to the high-pressure exhaust box. The lower end of the guide chute is located at the discharge hopper 11. At the top opening, the hopper 11 is fixedly mounted on the side of the vehicle frame. The gas tank frame 3 is a vertically shaped rectangular hollow shell. Several circular clamps are vertically spaced equidistantly inside the gas tank frame 3. Liquefied natural gas tanks are attached to the inner sides of these circular clamps. Supporting angle irons are provided at the four corners of the bottom surface of the gas tank frame 3. The outer surfaces of these supporting angle irons are separated by a louvered door 9 and a negative pressure fan 10. The supporting angle irons are connected to the adjacent side of the high-pressure gas outlet box 5. The high-pressure gas outlet box 5 is a pressurized internal pump box, containing an air pump. The high-pressure gas outlet box 5 is connected to the pressurized air inlet of the hopper 11 via a pipeline. The air pump is connected to the drive engine 12 via a gearbox. A control box 6 is located on the top rear side of the high-pressure air box and air tank frame 3. A handrail 7 is externally mounted on the rear side of the control box 6. Both ends of the handrail 7 are connected to the high-pressure air box and air tank frame 3. The negative pressure fan 10 is a high-frequency, high-speed fan. The negative pressure fans 10 are equidistantly arranged on the surface of the engine compartment 4 via a cover frame. The negative pressure fans 10 are embedded inside the surface of the cover frame. The louvered door 9 is an assembled sealed door. The surface of the louvered door 9 is provided with several ventilation louver grooves. The sealing strip on the inner surface of the louvered door 9 is sealed to the engine compartment 4.

[0031] Implementation example;

[0032] In use, the liquefied natural gas in the gas tank frame 3 is used to burn and heat the material in the mixing pipe. At the same time, the drive generator is started, and the drive engine 12 drives the negative pressure fan 10 to rotate, thereby continuously drawing air out of the engine compartment 4 and blowing it towards the bottom of the mixing tank 8. This isolates the heat from the combustion in the mixing tank 8 from the drive engine 12. Meanwhile, the engine compartment 4 continuously draws in cold air through the louvered door 9 to cool and dissipate heat from the drive engine 12, achieving the effect of negative pressure cooling.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heat dissipation structure for an externally air-cooled marking machine engine, the marking machine comprising a frame, a mixing tank, an air tank frame, a drive engine, a control box, a high-pressure air outlet box, and a discharge hopper, characterized in that, The vehicle frame has a mixing tank at the front end of its upper surface, and an air tank rack adjacent to the rear side of the mixing tank. A high-pressure air outlet box is located on one side of the air tank rack, and an engine compartment is located at the bottom of the air tank rack, which is vertically supported by angle iron. The surfaces of the engine compartment and the high-pressure air outlet box are interconnected. Several negative pressure fans are provided on the surface of the engine compartment and the mixing tank. Louvered doors are provided on the other two sides of the engine compartment. A drive engine is located inside the engine compartment. The drive engine is directly connected to an air pump inside the high-pressure air outlet box. The drive engine is connected to the negative pressure fans via a gearbox.

2. The externally air-cooled heat dissipation structure for a marking machine engine according to claim 1, characterized in that, The vehicle frame includes a chassis and casters. The chassis is a rectangular frame with four casters running longitudinally along its bottom. These casters are passive push-pull casters. The chassis is located on top of the chassis.

3. The externally air-cooled heat dissipation structure for a marking machine engine according to claim 1, characterized in that, The mixing tank is a cylindrical hollow tank. A guide trough is provided at the bottom of the side of the mixing tank adjacent to the high-pressure gas box. The lower end of the guide trough is located at the upper opening of the discharge hopper. The discharge hopper is fixedly located on the side of the vehicle frame.

4. The externally air-cooled heat dissipation structure for a marking machine engine according to claim 1, characterized in that, The gas tank rack is a vertical rectangular hollow shell. Inside the gas tank rack, there are several circular clamps arranged vertically at equal intervals. The inner side of each circular clamp is fitted with a liquefied natural gas tank. Supporting angle irons are provided at the four corners of the bottom surface of the gas tank rack. The outer surfaces of the supporting angle irons are separated by louvered doors and negative pressure fans. The supporting angle irons are connected to the adjacent side of the high-pressure gas outlet box.

5. The externally air-cooled heat dissipation structure for a marking machine engine according to claim 1, characterized in that, The high-pressure air outlet box is a booster-type internal pump box. The high-pressure air outlet box is equipped with an air pump inside. The high-pressure air outlet box is connected to the pressurization port of the discharge hopper through a pipeline. The air pump is connected to the drive engine through a gearbox.

6. The externally air-cooled heat dissipation structure for a marking machine engine according to claim 1, characterized in that, A control box is provided on the top rear side of the high-pressure gas box and gas tank frame. A handrail is provided on the outer rear side of the control box, and the two ends of the handrail are connected to the high-pressure gas box and gas tank frame.

7. The externally air-cooled heat dissipation structure for a marking machine engine according to claim 1, characterized in that, The negative pressure fan is a high-frequency, high-speed fan. The negative pressure fans are arranged in an equidistant row on the surface of the engine compartment through a cover frame, and the negative pressure fans are embedded in the surface of the cover frame.

8. The externally air-cooled heat dissipation structure for a marking machine engine according to claim 1, characterized in that, The louvered compartment door is an assembled sealed compartment door. The surface of the louvered compartment door is provided with several ventilation louver grooves, and the sealing strip on the inner surface of the louvered compartment door is sealed to the engine compartment.

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